lie detector

English Thesaurus

1. a polygraph that records bodily changes sometimes associated with lying (noun.artifact)

hypernym	:	polygraph,
definition	:	a medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration) (noun.artifact)

part holonym	:	electrical skin response, electrodermal response, fere phenomenon, galvanic skin response, gsr, psychogalvanic response, tarchanoff phenomenon,
definition	:	a change in the electrical properties of the skin in response to stress or anxiety; can be measured either by recording the electrical resistance of the skin or by recording weak currents generated by the body (noun.act)